feat(fpga): gen-xdc command + XDC profile integration#394
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Add `t27c gen-xdc <profile>` command that generates nextpnr-compatible XDC constraints from board profiles (minimal/full). Refactor fpga-build to use xdc_for_profile() instead of hardcoded XDC strings. - t27c gen-xdc minimal — 12 prjxray-verified pins + clock - t27c gen-xdc full — 16 pins (LED+UART+SPI) + clock - --output flag writes to file instead of stdout - fpga-build --profile minimal/full now uses shared xdc_for_profile() - E2E bitstream unchanged (3,822,696 bytes) Closes #393
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Summary
Add
t27c gen-xdc <profile>command that generates nextpnr-compatible XDC constraints from board profiles. Refactorsfpga-build --profileto use sharedxdc_for_profile()instead of hardcoded XDC strings.Closes #393
Changes
t27c gen-xdc <profile>CLI command (--outputoptional)PinAssignment/ClockAssignmentstructs for pin dataxdc_qmtech_minimal()— 12 prjxray-verified pins + clockxdc_qmtech_full()— 16 pins (LED+UART+SPI) + clockemit_xdc()— generic XDC emitterfpga-build --profilenow callsxdc_for_profile()instead of inline XDCTest plan
t27c gen-xdc minimal— 13 lines outputt27c gen-xdc full— 17 lines outputt27c gen-xdc minimal --output /tmp/test.xdc— writes filet27c fpga-build --profile minimal— E2E bitstream unchanged (3,822,696 bytes)